“The cab hummed around the corner and stopped in front of us. “Are you the Dula party?” it said. “No, we’re just out for a walk,” Dad said. Mother gave him a look. “Of course we are. It’s three in the goddamned morning.” “Your voice does not match the caller’s,” the cab said. “After midnight I need positive identification.” “I called,” my mother said. “Do you recognize this voice?” “Please show me a debit card.” A tray slid out and Dad flipped a card onto it. “Voice and card.” The doors opened silently. “Do you require help with your luggage?” “Stay put,” Dad said, instead of no. He’s always testing them.”
―
Joe Haldeman,
Marsbound
